CVE-2019-16199

Name: CVE-2019-16199
Creator: NVD / NIST
Published: 2019-09-17T21:15:11.163+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 13.14%

Last modified Jun 17, 2026

CVE-2019-16199 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. eQ-3 Homematic CCU2 before 2.47.18 and CCU3 before 3.47.18 allow Remote Code Execution by unauthenticated attackers with access to the web interface via an HTTP POST request to certain URLs related to the ReGa core process.. EPSS estimates a 13.14% chance of exploitation in the next 30 days.

Description

eQ-3 Homematic CCU2 before 2.47.18 and CCU3 before 3.47.18 allow Remote Code Execution by unauthenticated attackers with access to the web interface via an HTTP POST request to certain URLs related to the ReGa core process.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

13.14%

95.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Eq-3	Homematic Ccu2 Firmware	< 2.47.18
Eq-3	Homematic Ccu3 Firmware	< 3.47.18

References

https://psytester.github.io/CVE-2019-16199/Exploit, Third Party Advisory
https://psytester.github.io/CVE-2019-16199/Exploit, Third Party Advisory

Timeline

Published: Sep 17, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-16199?

How severe is CVE-2019-16199?

CVE-2019-16199 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 13.14% probability of exploitation in the next 30 days.

How do I fix CVE-2019-16199?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-16199?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST